Scarlett Curtis, daughter of film director Richard and Red Nose Day director Emma Freud, showed off her favourite Christmas present on social media.

Alongside a photograph of her wearing the backpack – complete with fluffy white maltipoo facing out of a clear Perspex dome – the 21-year-old Instagrammed: ‘My mum is good at lots of things and one of those things is buying Christmas presents. Posy also loves it. She is very happy. Don’t trust her face.’

Scarlett is the daughter of film director Richard (pictured) and director Emma Freud

Last night she had received over 650 ‘likes’ from her 26,000 followers, with people quickly asking where the luxury pooch-purse was from and suggesting they, too, needed one.

The ‘bubble’ rucksack, designed to make cats or dogs peering out from behind look like astronauts, are the brainchild of American company, U Pets, but are also available online.

Yesterday, however, the bubble packs had sold out on Amazon, whilst eBay was selling the bulky bags – which also come in yellow, green, purple, blue or leopard print – for £110.

As well as coming complete with special air holes, non-toxic materials and ergonomic cushioning to help the pet breathe comfortably, they also come with a special blanket.

Miss Curtis bought Posy in 2011. She said: 'She gave meaning to everything, brought joy to everyone, and I wouldn’t be alive today without her'

According to the website, the rucksacks offer pampered pooches and cute canines a ‘window to the world’, and are designed to carry a pet around in comfort.

Miss Curtis claimed she initially bought the pup for social media purposes only

Miss Curtis, who writes a column for Sunday Times’ Style magazine, recently penned a column about her beloved dog, Posy – and claimed she initially bought the pup for social media purposes only.

She explained: ‘In 2011, I bought a dog for Instagram. It’s a sad but true fact… I was certain that a small animal was the key to internet fame.

‘I set myself a mission to find the fluffiest, most photogenic canine the world had to offer, and a week later I was on my way to Surrey to meet a two-week-old litter of maltipoos (Maltese x poodle).

‘While my motivation for the adoption may have been aesthetically fuelled, the second I laid eyes on my future companion, something shifted. I wouldn’t have cared if she was the ugliest puppy alive. She loved me, she needed me, and at that sad stage in my life, that was all that mattered. ‘Posy came into my life on June 22, 2011, and changed it for ever. She gave meaning to everything, brought joy to everyone, and I wouldn’t be alive today without her.’

She set herself a mission to find the, ' fluffiest, most photogenic canine the world had to offer' and a week later she was on my way to Surrey to meet a two-week-old litter of maltipoos